SEMblog

Recently at a client we configured some mailboxes as Resources. It was then decided that they would be better off as shared mailboxes, as they could be used for other tasks. Therefore the mailbox was converted to shared:

set-mailbox mailboxname -type:shared

However any emails sent to the new Shared mailbox were continuing to go in to the Deleted Items folder. This is the standard behaviour for a resource mailbox, as it is only expecting to get calendar items.

The key is to disable the Calendar processing. You can see the current setting thus: